<div style="margin:50px auto;width: 400px;">
<div>
    账号:<input type="text"  name="username" value="">
</div>
<div style="margin: 20px 0;">
    密码:<input type="password"  name="password" value="">
</div>
<button class="login-btn layui-btn layui-btn-normal layui-btn-sm" style="margin-left: 30px;">登录</button>
<button class="reg-btn layui-btn layui-btn-warm layui-btn-sm">注册</button>
</div>